40320293239 has 2 divisors, whose sum is σ = 40320293240. Its totient is φ = 40320293238.

The previous prime is 40320293227. The next prime is 40320293249. The reversal of 40320293239 is 93239202304.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40320293239 is a prime.

It is a super-2 number, since 2×40320293239² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40320293198 and 40320293207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40320293249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160146619 + 20160146620.

It is an arithmetic number, because the mean of its divisors is an integer number (20160146620).

Almost surely, 2^40320293239 is an apocalyptic number.

40320293239 is a deficient number, since it is larger than the sum of its proper divisors (1).

40320293239 is an equidigital number, since it uses as much as digits as its factorization.

40320293239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 37.

The spelling of 40320293239 in words is "forty billion, three hundred twenty million, two hundred ninety-three thousand, two hundred thirty-nine".